Five particles are shot from the left into a region that contains a uniform electric field. The numbered lines show the paths taken by the five particles. A negatively charged particle with a charge -3Q follows path 2 while it moves through this field. Do not consider any effects due to gravity.
-Which path would be followed by a helium atom (an electrically neutral particle)?

Question

Five particles are shot from the left into a region that contains a uniform electric field. The numbered lines show the paths taken by the five particles. A negatively charged particle with a charge -3Q follows path 2 while it moves through this field. Do not consider any effects due to gravity. 
-Which path would be followed by a helium atom (an electrically neutral particle)?

Quizplus · Accepted Answer

Since helium is electrically neutral, it will not be affected by the electric field and will move in a straight line along its initial path, which is depicted by path 3.

Five Particles Are Shot from the Left into a Region